UNT Libraries Government Documents Department - 9 Matching Results

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Mail-Handling Apparatus

Description: Patent for an improved mail handling apparatus for use in trains that has an automatic mechanism to bridge the auxiliary car and the mail car when the car reaching the end of its track, including illustrations.
Date: November 30, 1915
Creator: Kerns, George E.
Item Type: Refine your search to only Patent

Tire-Tightener.

Description: Patent for a device that can easily expand or retract a tire onto the rim of a wheel. This allows for tires to be easily replaced as well as preventing the tire from slipping off the rim while in use.
Date: November 30, 1915
Creator: Leischner, Gotthilf
Item Type: Refine your search to only Patent

Spring-Caster.

Description: Patent for spring casters. "The principal object of the invention is to construct a caster in such a manner that an adequate resilient support will be obtained for the bed without the use of a spring mattress of like device" (lines 9-13).
Date: June 2, 1914
Creator: Smith, James A.
Item Type: Refine your search to only Patent
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